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3 years ago

What is true about all chemical equations? Links are reported

Chemistry

1 answer:

Vanyuwa [196]3 years ago

6 0

Answer:Your answer is A

Explanation:

Hope this helps ツ

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For the reaction: CO(g) + H2O(g) â‡Œ CO2(g) + H2(g) the value of Kc is 1.845 at a specific temperature. We place 0.500mol CO and

patriot [66]

Answer:

Explanation:

In the equilibrium:

CO(g) + H₂O(g) ⇄ CO₂(g) + H₂(g)

Kc is:

Kc = 1.845 = [CO₂] [H₂] / [CO] [H₂O]

Where [] are equilibrium concentrations of each species

Initial concentrations:

[CO] = 0.500mol / 1.00L = 0.500M

[H₂O] = 0.500mol / 1.00L = 0.500M

In equilibrium, concentrations will be:

[CO] = 0.500M - X

[H₂O] = 0.500M - X

[CO₂] = X

[H₂] = X

Where X is reaction coordinate. The amount of reactant that reacts producing products.

Replacing in Kc expression:

1.845 = [CO₂] [H₂] / [CO] [H₂O]

1.845 = [X] [X] / [0.500M - X] [0.500M - X]

1.845 = X² / X² - X + 0.25

1.845X² - 1.845X + 0.46125 = X²

0.845X² - 1.845X + 0.46125 = 0

Solving for X:

X = 0.288M; Right solution

X = 1.9M; False solution: Produce negative concentrations.

Replacing, equilibrium concentrations are:

[CO] = 0.500M - X = 0.212M

[H₂O] = 0.500M - X = 0.212M

[CO₂] = X = 0.288M

[H₂] = X = 0.288M

3 0

4 years ago

Na + CI2 =2NaC is It balanced

scoray [572]

Answer:

no, the correct answer is NaCI

Explanation:

you're welcome

3 0

3 years ago

How many molecules are there in 125 grams of sugar, C12H22O11

krek1111 [17]

Answer:

A molecule of sucrose (C12H22O11) has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms. The subscripts also indicate the ratios of the elements.

Explanation:

This is because it has the abbreviation of the Carbon atoms, Hydrogen atoms, and Oxygen atoms are right before the number.

3 0

4 years ago

What is depletion?? good morning have A crazy day

Sever21 [200]

Answer:

Depletion is the movement of the cost of natural resources from a company's balance sheet to its income statements. The objective is to match on the income statement the cost of the natural resources that were sold with the revenues of the natural resources that were sold.

Explanation:

well have crazy day too, take care...bye :)

3 0

3 years ago

Read 2 more answers

An open manometer connected to a tank of argon has a mercury level of 83 mm higher in the atmospheric arm. If the atmospheric pr

disa [49]

Answer:- 88 kPa.

Solution:- The level of mercury in the atmospheric arm that is the open arm is 83 mm. It indicates the gas pressure is 83 mm higher than the atmospheric pressure.

gas pressure = height of mercury level in open tube in mm + atmospheric pressure

Let's convert this 83 mm pressure to kpa since the atmospheric pressure is given in kPa and the answer is also asked to report in kPa.

mmHg is converted to atm first and then atm is converted to kpa.

760 mmHg = 1 atm

and 1 atm = 101.325 kPa

$83mmHg(\frac{1atm}{760mmHg})(\frac{101.325kPa}{atm})$

= 11 kPa

Atmospheric pressure is 76.9 kPa.

gas pressure = 11 kPa + 76.9 kPa

gas pressure = 87.9 kPa

If we think about sig figs rule then 87.9 should be round to 88 as in addition we go with least number of decimal places. 11 kPa does not have any decimal places and so the gas pressure is 88 kPa.

6 0

4 years ago